Manufacturers across electronics assembly continue to face persistent challenges including inconsistent manual inspection results, high labour costs, and escaped solder‑joint defects on finished printed‑circuit‑board assemblies. To resolve these pain points, our company has launched a high‑performance off‑line Automated Optical Inspection (AOI) machine built for both SMT reflow soldering and DIP wave‑soldering production workflows.

Traditional manual visual inspection can only achieve roughly 70 % effective defect‑detection rate, while human fatigue leads to unstable judging standards and frequent missed defects. Our newly released AOI system delivers over 99 % effective detection rate and helps factories reduce 2‑4 inspectors for each production line, bringing measurable labour‑cost reduction and stable output quality.

This AOI unit adopts modern optical principles together with digital high‑speed full‑color CCD imaging technology. It captures real‑time PCBA images and runs multi‑algorithm analysis through dedicated inspection software to generate objective, repeatable inspection reports automatically.

Supported defect types fully cover common SMT faults:

• missing components
• component misalignment
• wrong parts
• reversed polarity
• part damage
• contamination
• insufficient or excessive solder
• short‑circuit and cold solder joints

For DIP wave‑soldering boards, the equipment reliably catches:

• excess solder
• insufficient solder
• solder voids
• short‑circuits
• un‑protruding pin leads

Powerful built‑in software functions ensure flexible operation for different product mixes. Highlights include:

• OCR character recognition
• CAD‑data import
• SPC statistical analysis
• barcode scanning
• offline programming
• multi‑panel inspection
• multi‑machine networking
• permission management for operators
• exportable daily / weekly / monthly quality reports

The system supports connection with multiple repair stations to streamline defect rework workflows on‑site.

On the hardware side, precision mechanical structure with high‑rigidity machine base minimizes operating vibration. Servo‑motor driven lead‑screw guides deliver positioning accuracy below 8 μm and maximum moving speed up to 800 mm/s. The automatic fixture enables quick PCB loading and unloading. The tri‑color Philips LED light source passes strict aging tests to reach 50 000‑hour service life; multi‑angle illumination creates distinct color contrast between components and solder points to support precise defect judgement. Omron electrical components and LAPP drag‑chain cables further improve long‑term equipment stability and reduce maintenance frequency.

PCB Sizes

25 * 25 mm up to 330 * 380 mm (larger dimensions available via customisation)

Board Thickness

0.3 mm to 5.0 mm

Component Height

Up to 35 mm (top‑side), 50 mm (bottom‑side)

Resolution Options

10 μm, 15 μm, 18 μm, 20 μm, 25 μm

Operating Temperature

‑10 °C ~ 40 °C

Humidity

20‑90 % non‑condensing

Total Dimension

980 * 945 * 1260 mm

For after‑sales guarantee, the AOI machine comes with 12‑month full warranty after customer site acceptance. All non‑human‑caused failures receive free repair service within warranty period. After expiry of warranty term, our team provides preferential spare‑parts supply and technical support; clients only need to cover parts cost plus labour charge without hidden extra fees.

Electronics manufacturers deploying this AOI solution will gain better process control via SPC defect statistics, lower rework and scrap rate, as well as strengthened overall market competitiveness. It serves as a practical quality‑control upgrade option for small‑to‑mid‑size PCBA factories.